Number
1,897
1,897 is a composite number, odd, a calendar year.
Notable events — 1897 AD
- Jun 22 Queen Victoria celebrates her Diamond Jubilee, marking 60 years on the throne.
- Aug 29 Theodor Herzl convenes the First Zionist Congress in Basel.
- May 18 Bram Stoker publishes Dracula.
- Apr 19 The first Boston Marathon is run.
- May 6 Greater New York is consolidated, taking effect January 1, 1898.
Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0
Year facts
- Year type
-
Common year
Standard 365-day year; not divisible by 4 (or divisible by 100 but not 400).
- Days in year
- 365
- ISO weeks
- 52
- Started on
-
Friday
January 1, 1897
- Ended on
-
Friday
December 31, 1897
- Friday the 13ths
-
1
One Friday the 13th this year.
- Easter Sunday
-
April 18
Sunday, April 18, 1897
- Decade
-
1890s
1890–1899
- Century
-
19th century
1801–1900
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
129
129 years before 2026.
In other calendars
- Hebrew
-
5657 / 5658 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1314 / 1315 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Fire zodiac:Rooster
Sexagenary cycle position 34 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2440 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1275 / 1276 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1889 / 1890 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1819 / 1818 Saka
Indian national calendar; year starts in March.
- Japanese
-
Meiji 30
Reign-era counting from the start of each emperor's reign.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 25
- Digit product
- 504
- Digital root
- 7
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 7,981
- Recamán's sequence
- a(7,950) = 1,897
- Square (n²)
- 3,598,609
- Cube (n³)
- 6,826,561,273
- Divisor count
- 4
- σ(n) — sum of divisors
- 2,176
- φ(n) — Euler's totient
- 1,620
- Sum of prime factors
- 278
Primality
Prime factorization: 7 × 271
Divisors & multiples
Aliquot sum (sum of proper divisors):
279
First multiples
Sums & aliquot sequence
As consecutive integers:
948 + 949
268 + 269 + … + 274
129 + 130 + … + 142
Aliquot sequence:
1,897 → 279 → 137 → 1 → 0
— terminates at zero
Representations
- In words
- one thousand eight hundred ninety-seven
- Ordinal
- 1897th
- Roman numeral
- MDCCCXCVII
- Binary
- 11101101001
- Octal
- 3551
- Hexadecimal
- 0x769
- Base64
- B2k=
- One's complement
- 63,638 (16-bit)
In other bases
ternary (3)
2121021
quaternary (4)
131221
quinary (5)
30042
senary (6)
12441
septenary (7)
5350
nonary (9)
2537
undecimal (11)
1475
duodecimal (12)
1121
tridecimal (13)
b2c
tetradecimal (14)
997
pentadecimal (15)
867
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αωϟζʹ
- Mayan (base 20)
- 𝋤·𝋮·𝋱
- Chinese
- 一千八百九十七
- Chinese (financial)
- 壹仟捌佰玖拾柒
In other modern scripts
Eastern Arabic
١٨٩٧
Devanagari
१८९७
Bengali
১৮৯৭
Tamil
௧௮௯௭
Thai
๑๘๙๗
Tibetan
༡༨༩༧
Khmer
១៨៩៧
Lao
໑໘໙໗
Burmese
၁၈၉၇
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,897 = 1
- e — Euler's number (e)
- Digit 1,897 = 1
- φ — Golden ratio (φ)
- Digit 1,897 = 3
- √2 — Pythagoras's (√2)
- Digit 1,897 = 5
- ln 2 — Natural log of 2
- Digit 1,897 = 5
- γ — Euler-Mascheroni (γ)
- Digit 1,897 = 4
Also seen as
Unicode codepoint
ݩ
Arabic Letter Noon With Small V
U+0769
Other letter (Lo)
UTF-8 encoding: DD A9 (2 bytes).
Hex color
#000769
RGB(0, 7, 105)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.105.
- Address
- 0.0.7.105
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.105
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 1897 first appears in π at position 7,552 of the decimal expansion (the 7,552ordinal-suffix:nd digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.